Wow, some of you guys are completely missing his point. There have been plenty of RPGs with timers. Final Fantasy 6 anyone? I'm sure there are others, that's just the first one that popped into my head.
When a situation calls for urgency, why shouldn't a timer be used, especially since the story/setting is such an integral part to an RPG? The factory is BURNING. And I'm sure that there are tons of highly volatile materials stored in the factory that could cause catastrophic failure at some point. Why should you be allowed to explore every nook and cranny to your heart's content.
It's obvious that the developer was going for a suspenseful moment, considering the factory is burning down, but it takes away from the suspense they were going for if you can just stroll through the factory at your leisure. I'm surprised so many people are jumping on disolitude. Isn't the story and setting supposed to be a large part of RPGs?
And as a disclaimer, I have not played Mass Effect 2. So I have no idea about the situation, or the game. But it seems like he's presented a valid point, and everyone is letting the developers gameplay get a free pass because it's an RPG, or because timers suck and we don't want them. Instead of, you know, trying to give logical arguments.